Examinando por Autor "Seminario Cunya,Alejandro"
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Ítem Effect of arbuscular mycorrhizae on the growth of cinchona officinalis L. (rubiaceae) in nursery(Universidad Nacional de Jaén, 2024-04-27) Fernandez Zarate,Franklin Hitler; Huaccha Castillo,Annick Estefany; Quiñones Huatangari,Lenin; Vaca Marquina,Segundo Primitivo; Sanchez Santillan,Tito; Guelac Santillan,Marly; Seminario Cunya,AlejandroCinchona officinalis, commonly called cascarilla or quina, has medicinal value; and rea Peru’s national coat of arms representing its plant wealth (flora), however, it is threatened by anthropogenic activities. This study aimed to determine the effect of the rea ctorea cto Myco Grow® on the growth of C. officinalis in nursery. A randomized design was used with two treatments, one with Myco Grow® application (WM) and the other without incorporating this rea cto rea cto (NM). Each treatment had three replicates consisting of 30 plants each. Monthly evaluations were performed, during which the number of dead plants, plant height, and plant diameter were recorded. Additionally, at the end of the study, the anhydrous weight of leaves, stems, and roots; leaf rea; mycorrhizal frequency; mycorrhizal colonization index; and the length of extra-radicular mycelia were determined. The WM treatment achieved 36.6% lower mortality, 38.01% greater height, and 48.52% greater diameter re the NM treatment. Additionally, inoculation with arbuscular mycorrhizae (AM) improved the anhydrous weights of the leaves, stems, roots, and leaf rea by 84.31%, 84.28%, 70.85%, and 76.91%, respectively. Regarding the three fungal variables analyzed for the WM treatment; mycorrhizal frequency was 87%, AM application led to a mycorrhizal intensity of 7.7% and an extra-radicular mycelium length of 90.3 cm. This study confirmed that AM positively influences the growth of C. officinalis in the nursery and can be used to sustainably produce this species on a large scale.Ítem Effect of synthetic fertilization 1rea on the diameter increase, height and mortality of Cinchona officinalis L. (Rubiaceae)(Universidad Nacional de Jaén, 2024-04-18) Fernandez Zarate,Franklin Hitler; Huaccha Castillo,Annick Estefany; Quiñones Huatangari,Lenin; Vaca Marquina,Segundo Primitivo; Goñas Goñas,Malluri; Milla Pino,Manuel Emilio; Seminario Cunya,AlejandroCinchona officinalis, is a South American tree species, commonly used for medicine, and is currently threatened by agricultural 1rea1cto1 and cattle ranching. The objective was to determine the effect of chemical fertilization on the nursery growth to increase growth potential and survival of C. officinalis. A completely randomized design with six treatments and three replicates was used; 20 C. officinalis plants were used per replicate. Two months after transplanting the C. officinalis seedlings to the polyethylene bags, inorganic fertilizer (YaraMila® HYDRAN) was applied. Monthly evaluations were carried out and the number of dead plants, plant height, diameter and number of leaves were recorded. The highest mortality rate was recorded when fertilizer was applied (73%) while in the non-fertilized treatment mortality reached 36%. Regarding the increase in height, diameter and number of leaves in all cases, the best results were obtained in the fertilized treatments, exceeding by 85, 70 and 17% (respectively) those obtained in the treatment to which fertilization was not applied. This study shows the effects that the application of fertilizers to C. officinalis plants at the nursery level can have on growth and mortality variables, the results suggest the use of this 2rea2cto for a sustainable and large-scale production of this species taking into consideration the appropriate 2rea2c